Coupling member



Aug. 7, 192a. 1,679,863

0. J. HERB COUPLING MEMBER Filed April 25, 1924 j zz/ 97273 Uzio J Harb. 5 WWQM W I ll atented ug. 11C 12.. I

NlT'E STATE PATENT OFFICE.

orro JPHERB, or CHICAGO, ILLINoIs, Ass cmoR To .THE BASSICK Mmurncrunme comPANY, or CHICAGO, ILLINOIS, a CORPORATION OF'DELAWARE.

courmne MEMBER.

Application na e 25, 1924: Serial 1%. 708,928.

ll ly invention pelates to improvements in coupling members; and -is particularly concerned with improvements in coupling members adapted to form a part of a lubricating d system comprising a plurality of. fittings to be secured to the hearings to be lubricated.

and a lubricant compressor embodying means for placing lubricant under pressure, and

. a coupling member for successively making 1h sealed connection with the various fittings, so that the lubricant, under high pressure, can be forced into the fittings without leaksealing member, or gasket, in an outwardlybowed, or-convexed position, so as to insure a tight initial contact between .the sealing member and the fitting.

it further object oil my invention is to provide a coupling member of the character described in which the sealing member is so arranged and secured that it will not become distorted during the act of securing the cou-"' pling member to a fitting, and 1 Finally, to provide a coupling member of the character described, which is simple in construction, economical to manufacture, and easy to operate. s

@ther objects oi my invention will appear as this description progresses, reference being had'to the accompanying drawings, in which Figure 1 is a side elevation of a lubricant compressor embodyingmy improved coupling, which is here shown attached to one of the fittings forming a part 01 the lubricating system, and

Figure 2 is a central longitudinal section through my improved coupling member. v

Referring to the drawings, 1 have illusan trated my improved coupling in connection with a lubricant compressor comprising a barrel 5 having a piston (not shown) recipthe inner end oi the screw threaded piston e. 1 4 ne of the objects 01 my present invention 1% is to provide a coupling member particularly rod 6, which is provided at its outer end with the handle 7.

A flexible discharge conduit 8 is connected with the opposite end of the barrel 5 and terminates in the union 9. .flhis union is threadedinto the bore 10 formed in the body member 11. of my improved coupling memher. The bore 10 communicates with the bore 12, which extends transversel through the body member 11, one end 0 the here being closed by the cap 13 which is threaded into the bore, as shown in Figure 2.

A pair ot oppositel disposed flanges 11-, only one ot which is s own in Figure 2, are

formed integrally with the body member 11' tor engaging beneath the head 15V 01? Yafitting 16, such as shown in Fi ure 1, tor mechanically securing the coupling member to the fitting.

A toroidal groove 17 is tormed in the wall of the bore 12 adjacent the flanges 141, and a cup'leather 18 is positioned in the same end ot this bore. h or securing the cup leather in the position shown, ll provide a split ring 19 which is inserted in the cup leather and permitted to expand so as to force an annular portion 18 out the cup leather 11% into the greove 17, as shown in Figure 2. V

- In order to convex the bottom of the cup leather 18 outwardly so as to insure a good initial-contact between the cup leather and the head 15 ot the fitting, 1 provide the compression spring 20 which is confined between the bottom oil the cup leather 18 and the plug 13, and which tends to force the bot tom of the cup leather out to the position shown in Figure 2. When the-cup leather is conformed, as shown in this figure, it not only insuresa good initial contact between struction and economical to munulacture. rocable therein, this piston being carried by While 1 *have described the details of construction ot the preferred embodiment oi? my invention,

' modifications within leather.

2. A coupling member for a lubricant it is to be clearly understood that my invention is not limited to these details, but iscapable of other adaptations and the scope of the appended claims.

Having thus described my invention, what I claim is:

1. A coupling member for a "lubricant compressor comprising a body member having a bore therethrough, atoroidal groove formed in the wall of-said bore adjacent one end thereof, a cup leather in the last mentioned end of said bore, a split ring pressing the flange of said on leather into said oove, a plug closing t e other end of said ore, and a compression spring confined between said plug and the bottom of said cup compressor comprising a body member having a boretherethrough, ,a groove formed in the Wall of said bore adjacent one end thereof, a cup leather in the last mentioned end of said bore,a ring pressing the flange of said cup leather into said groove, a plug closing the other end of said bore,.and a compression spring confined between said plug and the bottom of said cup leather.

3. A coupling member comprising a body member having a bore opening through one side thereof, the wall of said bore having a groove formed therein a jacent the open end of said bore, a cup leather in the open end of said bore, a ring pressing the flange of said cup leathervinto said groove, and a spring pressing. the bottom of said cup leather outwardly.

In witness whereof, I hereunto subscribe my name this 18th day of April, 1924.

' OTTO J. HERB. 

